A McWord is a word containing the prefixMc-, derived from the first syllable of the name of the McDonald's restaurant chain. Words of this nature are either official marketing terms of the chain (such as McNugget), or are neologisms designed to evoke pejorative associations with the restaurant chain or fast food in general, often for qualities of cheapness, inauthenticity, or the rapidity and ease of manufacture. They are also used in non-consumerism contexts as a pejorative for heavily commercialized or globalized things and concepts.

A screenshot of the video gaming website IGN under "McIGN" branding circa September 2003

McWorld – The term was used in a mid-1990s McDonald's advertising campaign depicting a world ruled by children. It is also used in a critical way to emphasize the deprecation of local culture in favor of a global culture prescribed by large corporations.

McDonaldization – the process by which a society takes on the characteristics of a fast-food restaurant.

McDojo – A martial arts school (dojo) seen as sacrificing pedagogic principles in favor of offering rapid advancement through the various ranks, often requiring a fee to be paid to achieve a higher rank (often denoted by a colored belt, hence the use of another pejorative name, "belt factory", analogous to a degree mill).